Sprinkle a bit of salt over the garlic. With the flat part of a knife, grind against the salt and garlic. The salt acts as an abrasive and helps release the juices in the garlic and turns the garlic into a paste consistency. Add the garlic paste and lemon juice into a mixing bowl. Mix well with a whisk or fork. Add in the olive oil and grated parmesan. Whisk well. Add in the yogurt and oregano leaves. Combine well. Serve immediately with fresh crispy vegetables such as carrots, broccoli, cauliflower, peppers, cucumbers and/or zucchini.